From f4d9ad60aca3878cf4fb3eff171e83e4097516ee Mon Sep 17 00:00:00 2001
From: nareix <hi.nareix@gmail.com>
Date: Sat, 11 Jun 2016 09:27:19 +0800
Subject: [PATCH] check stream index when parse block

---
 client.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/client.go b/client.go
index 03dbaa9..463171d 100644
--- a/client.go
+++ b/client.go
@@ -562,6 +562,10 @@ func (self *Client) parseBlock(blockNo int, packet []byte) (streamIndex int, err
 	}
 
 	streamIndex = blockNo/2
+	if streamIndex >= len(self.streams) {
+		err = fmt.Errorf("rtsp: parseBlock: streamIndex=%d invalid", streamIndex)
+		return
+	}
 	stream := self.streams[streamIndex]
 
 	/*